What does a Refinery Do?

A refinery is where crude oil is refined and made into petrol, diesel and kerosene. The refinery receives the crude oil and heats it to different temperatures. The petrol becomes gaseous at a temperature between 35O degree C and 140o C. It is taken out by pipes, cooled and turned into petrol for use in cars. The diesel oil becomes gaseous at 300o C. It is extracted at this stage and cooled and turned into diesel. In this manner all different components are taken out and turned into relevant products.